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  1. 14 7月, 2016 1 次提交
  3. 01 4月, 2016 1 次提交
  5. 31 3月, 2016 1 次提交
  7. 01 3月, 2016 1 次提交
  9. 19 2月, 2016 2 次提交
  11. 11 2月, 2016 2 次提交
  13. 26 1月, 2016 2 次提交
    • T
      libata: disable forced PORTS_IMPL for >= AHCI 1.3 · 566d1827
      由 Tejun Heo 提交于 
      Some early controllers incorrectly reported zero ports in PORTS_IMPL
register and the ahci driver fabricates PORTS_IMPL from the number of
ports in those cases.  This hasn't mattered but with the new nvme
controllers there are cases where zero PORTS_IMPL is valid and should
be honored.

Disable the workaround for >= AHCI 1.3.
Signed-off-by: NTejun Heo <tj@kernel.org>
Reported-by: NAndy Lutomirski <luto@amacapital.net>
Link: http://lkml.kernel.org/g/CALCETrU7yMvXEDhjAUShoHEhDwifJGapdw--BKxsP0jmjKGmRw@mail.gmail.com
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: stable@vger.kernel.org
      566d1827
    • D
      drivers: ata: wake port before DMA stop for ALPM · fb329633
      由 Danesh Petigara 提交于 
      The AHCI driver code stops and starts port DMA engines at will
without considering the power state of the particular port. The
AHCI specification isn't very clear on how to handle this scenario,
leaving implementation open to interpretation.

Broadcom's STB SATA host controller is unable to handle port DMA
controller restarts when the port in question is in low power mode.
When a port enters partial or slumber mode, its PHY is powered down.
When a controller restart is requested, the controller's internal
state machine expects the PHY to be brought back up by software which
never happens in this case, resulting in failures.

To avoid this situation, logic is added to manually wake up the port
just before its DMA engine is stopped, if the port happens to be in
a low power state. HBA initiated power management ensures that the port
eventually returns to its configured low power state, when the link is
idle (as per the conditions listed in the spec). A new host flag is also
added to ensure this logic is only exercised for hosts with the above
limitation.

tj: Formatting changes.
Signed-off-by: NDanesh Petigara <dpetigara@broadcom.com>
Reviewed-by: NMarkus Mayer <mmayer@broadcom.com>
Signed-off-by: NTejun Heo <tj@kernel.org>
      fb329633
  15. 07 12月, 2015 1 次提交
  17. 30 11月, 2015 1 次提交
    • X
      AHCI: Fix softreset failed issue of Port Multiplier · 023113d2
      由 Xiangliang Yu 提交于 
      Current code doesn't update port value of Port Multiplier(PM) when
sending FIS of softreset to device, command will fail if FBS is
enabled.

There are two ways to fix the issue: the first is to disable FBS
before sending softreset command to PM device and the second is
to update port value of PM when sending command.

For the first way, i can't find any related rule in AHCI Spec. The
second way can avoid disabling FBS and has better performance.
Signed-off-by: NXiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
      023113d2
  19. 17 11月, 2015 2 次提交
  21. 31 10月, 2015 2 次提交
  23. 01 10月, 2015 1 次提交
    • M
      ata: ahci: find eSATA ports and flag them as removable · 8a3e33cf
      由 Manuel Lauss 提交于 
      If the AHCI ports' HPCP or ESP bits are set, the port
should be considered external (e.g. eSATA) and is marked
as removable.  Userspace tools like udisks then treat it
like an usb drive.

With this patch applied, when I plug a drive into the esata port,
KDE pops up a window asking what to do with the drives(s), just
like it does for any random USB stick.

Removability is indicated to the upper layers by way of the
SCSI RMB bit, as I haven't found another way to signal
userspace to treat a sata disk like any usb stick.
Signed-off-by: NManuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: NTejun Heo <tj@kernel.org>
      8a3e33cf
  25. 03 6月, 2015 1 次提交
    • R
      ahci: Store irq number in struct ahci_host_priv · 21bfd1aa
      由 Robert Richter 提交于 
      Currently, ahci supports only msi and intx. To also support msix the
handling of the irq number need to be changed. The irq number for msix
devices is taken from msi_list instead of pci_dev. Thus, the irq
number of a device needs to be stored in struct ahci_host_priv now.
This allows the host controller to be activated in a generic way.

This change is only intended for ahci drivers. For that reason the irq
number is stored in struct ahci_host_priv used only by ahci drivers.
Thus, the ABI changes only for ahci_host_activate(), but existing ata
drivers (about 50) are unaffected and keep unchanged. All users of
ahci_host_activate() have been updated.

While touching drivers/ata/libahci.c, doing a small code cleanup in
ahci_port_start().
Signed-off-by: NRobert Richter <rrichter@cavium.com>
Signed-off-by: NTejun Heo <tj@kernel.org>
      21bfd1aa
  27. 10 5月, 2015 2 次提交
  29. 26 4月, 2015 1 次提交
  31. 10 1月, 2015 1 次提交
  33. 28 10月, 2014 2 次提交
  35. 06 10月, 2014 6 次提交
  37. 31 7月, 2014 1 次提交
  39. 08 7月, 2014 1 次提交
  41. 15 5月, 2014 1 次提交
  43. 24 4月, 2014 1 次提交
  45. 27 3月, 2014 1 次提交
  47. 23 2月, 2014 1 次提交
    • H
      libahci: Allow drivers to override start_engine · 039ece38
      由 Hans de Goede 提交于 
      Allwinner A10 and A20 ARM SoCs have an AHCI sata controller which needs a
special register to be poked before starting the DMA engine.

This register gets reset on an ahci_stop_engine call, so there is no other
place then ahci_start_engine where this poking can be done.

This commit allows drivers to override ahci_start_engine behavior for use by
the Allwinner AHCI driver (and potentially other drivers in the future).
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NTejun Heo <tj@kernel.org>
      039ece38
  49. 20 2月, 2014 2 次提交
  51. 14 2月, 2014 1 次提交
  53. 15 12月, 2013 1 次提交